Features 1、The carabiner is made of high hardness 304 stainless steel material, using polishing process, durable. You don't have to worry about it rusting. 2、Heavy duty carabiner passes 540lbs breaking strength test, 500lbs recommended working load limit. 3、Allows quick connection/disconnection. For more safety, we also added a screw lock function to the carabiner. 4、Opens and closes smoothly as the spring loaded gate makes it easy to attach important items to it. 5、304 stainless steel screw lock carabiner hook is suitable for outdoor work, hanging hammocks, hanging swings, etc. Specification Item Type: Carabiner Hook Material: 304 Stainless Steel Thickness: 4.9mm/5.8mm/7.82mm/9.74mm/11.73mm Size: 50.2mm/60.5mm/80.3mm/100.8mm/140.5mm Uses: Widely used in daily life, to connect clasps to backpacks, handbags, ropes, rings, bicycles, hammocks, or as keychains, bottle holders or EDC tools, kayaking, camping, tents, hiking, fishing accessories for outdoor sports Package List 1 x Carabiner Hook